package com.atguigu.lease.web.admin.custom.converter;

import com.atguigu.lease.model.enums.BaseEnum;
import org.springframework.core.convert.converter.Converter;
import org.springframework.core.convert.converter.ConverterFactory;
import org.springframework.stereotype.Component;

// 将字符串转换为实现了 BaseEnum 接口的枚举类型
@Component
public class StringToBaseEnumConverterFactory implements ConverterFactory<String, BaseEnum> {

	@Override
	public <T extends BaseEnum> Converter<String, T> getConverter(Class<T> targetType) {
		return new Converter<String, T>() {
			@Override
			public T convert(String code) {
				T[] enumConstants = targetType.getEnumConstants();
				for (T enumConstant : enumConstants) {
					if (enumConstant.getCode().equals(Integer.valueOf(code))) {
						return enumConstant;
					}
				}
				throw new IllegalArgumentException("code:"+code+"非法");
			}
		};
	}
}
